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StorPortFreeHostMemoryBuffer function (storport.h)

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The StorPortFreeHostMemoryBuffer routine frees the physically contiguous memory that was allocated to be used for a Host Memory Buffer (HMB)

Syntax

ULONG StorPortFreeHostMemoryBuffer(
  [in] PVOID         HwDeviceExtension,
       PACCESS_RANGE PhysicalAddressRanges,
  [in] ULONG         PhysicalAddressRangeCount
);

Parameters

[in] HwDeviceExtension

A pointer to the hardware device extension for the host bus adapter (HBA).

PhysicalAddressRanges

The array of physical address ranges that make up the Host Memory Buffer previously allocated by StorPortAllocateHostMemoryBuffer.

[in] PhysicalAddressRangeCount

The number of entries in PhysicalAddressRanges.

Return value

StorPortFreeHostMemoryBuffer returns one of the following status codes:

Return code Description
STOR_STATUS_SUCCESS
 The host memory buffer was successfully freed.
STOR_STATUS_UNSUCCESSFUL
 The host memory buffer was not valid (likely already freed).

Requirements

Requirement Value
Target Platform Universal
Header storport.h (include Storport.h)

See also

StorPortAllocateHostMemoryBuffer